Apple MacBook Pro ME293LL/A 15.4-Inch Laptop with Retina Display (OLD VERSION) 2.0GHz quad-core Intel Core i7 processor (Turbo Boost up to 3.2GHz) with 6MB shared L3 cache 256GB PCIe-based flash storage; 8GB 1600MHz DDR3L onboard memory 15.4-inch (diagonal) Retina display, 2880x1800 pixel Resolution; LED-backlit with IPS technology Intel Iris Pro Graphics ; 802.11ac Wi-Fi wireless networking Mac OS X Mavericks, Up to 8 hours of battery life